Quenching and cooling device for producing drill tail screws

Abstract

The utility model discloses a quenching and cooling device for drill tip screw production, including the notch of the up of the cooling groove, be equipped with the article net basket in the cooling groove, and the basket mouth of article net basket has the outward extension and the closed ring -like baffle, and the baffle is established in the top of cooling groove, and the front of cooling groove is equipped with the left and right two ends respectively and stretches out the left and right two sides outer wall of cooling groove's front auxiliary frame, the back of cooling groove is equipped with the left and right two ends respectively and stretches out the left and right two sides outer wall of cooling groove's back auxiliary frame, and the back auxiliary frame is connected with the front auxiliary frame between rotation and has two and presents the left and right symmetry arrangement's camshaft, and the camshaft is established in the outside of cooling groove, and every the camshaft is equipped with respectively and the front cam and the rear cam of wheel surface and the baffle bottom are pressed, and the camshaft is connected with the power assembly of control and makes the rotation. This quenching and cooling device has the characteristics of good cooling uniformity, high cooling efficiency, perfect overall function and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment equipment technology, and more specifically, it relates to a quenching and cooling device for the production of self-drilling screws. Background Technology

[0002] In the production and processing of self-drilling screws, quenching and cooling is a crucial step determining their mechanical properties and reliability. This step requires rapidly immersing the high-temperature self-drilling screw in a cooling medium to cool it down and strengthen the metal structure. Currently, commonly used quenching and cooling equipment for self-drilling screws in the industry often uses a fixed mesh basket or material frame to hold the workpiece, which is then directly immersed in the cooling medium of the cooling tank for cooling. However, this traditional cooling method has significant drawbacks: because the workpiece remains stationary during the cooling process, the flow of the cooling medium at the contact point between the workpiece and the mesh basket is easily obstructed, creating localized temperature gradient differences. This leads to uneven cooling of the workpiece, resulting in inconsistent hardness and unstable mechanical properties, seriously affecting the product quality of the self-drilling screws. Furthermore, the heat exchange efficiency of the cooling medium is low in a static state, which not only prolongs the quenching and cooling cycle and reduces overall production efficiency, but may also cause oxidation, decarburization, and other adverse phenomena in the workpiece due to insufficient cooling speed, increasing subsequent processing costs and the risk of product scrap. Therefore, there is an urgent need for a quenching and cooling device that can optimize the cooling process, improve cooling effect and production efficiency, to address the many shortcomings of existing technologies. Accordingly, this utility model proposes a quenching and cooling device for the production of self-drilling screws. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a quenching and cooling device for the production of self-drilling screws. This quenching and cooling device has the characteristics of good cooling uniformity and high cooling efficiency.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: The present utility model relates to a quenching and cooling device for the production of self-drilling screws, including a cooling tank with the slot opening facing upwards. A storage basket is provided in the cooling tank, and the opening of the storage basket has a retaining ring extending outwards and forming a closed ring. The retaining ring is located above the cooling tank. A front auxiliary frame is provided on the front side of the cooling tank, with its left and right ends respectively extending outwards from the left and right outer walls of the cooling tank. A rear auxiliary frame is provided on the rear side of the cooling tank, with its left and right ends respectively extending outwards from the left and right outer walls of the cooling tank. Two camshafts arranged symmetrically on the left and right are rotatably connected between the rear auxiliary frame and the front auxiliary frame. The camshafts are located on the outside of the cooling tank. Each camshaft is provided with a front cam and a rear cam whose wheel surfaces abut against the bottom of the retaining ring. A power assembly for controlling rotation is driven and connected to the camshaft.

[0005] The present invention is further configured such that: each of the camshafts is provided with a synchronous pulley, and a synchronous belt is connected between the two synchronous pulleys for transmission; the power assembly is provided on one of the camshafts.

[0006] The present invention is further configured such that the powertrain includes a geared motor.

[0007] The present invention is further configured such that: a mounting bracket is provided on the cooling tank, and the powertrain is mounted on the mounting bracket.

[0008] The present invention is further configured such that: the inner wall of the cooling tank is provided with a sliding groove that extends vertically, and a slider is slidably connected in the sliding groove, the slider being disposed on the outer wall of the storage basket.

[0009] The present invention is further configured such that: a disturbance shaft is provided in the cooling tank below the storage basket, the disturbance shaft is provided with disturbance blades, the disturbance shaft is rotatably connected to the cooling tank, the disturbance shaft is provided with a gear, the gear is meshed with a rack that extends vertically, and the rack is connected to the storage basket.

[0010] In summary, this utility model has the following beneficial effects: 1. The powertrain drives the camshaft to rotate, which intermittently pushes the storage basket, causing the self-drilling screw to move up and down within the cooling tank. This breaks the static state of the cooling medium around the workpiece, promotes full contact and renewal between the medium and the workpiece, eliminates cooling dead zones, avoids hardness differences, and improves the stability and yield of the product's mechanical properties.

[0011] 2. The up-and-down movement of the wire mesh basket enhances convective heat transfer, accelerates workpiece cooling, shortens cooling time, and improves efficiency. Synchronous pulleys and belts ensure smooth lifting and lowering of the basket, preventing workpiece damage; the modular installation of the powertrain facilitates maintenance, ensures continuous production, and reduces downtime losses. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention. Detailed Implementation

[0013] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0014] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0015] Example 1 See Figure 1 and Figure 2 As shown, the quenching and cooling device for producing self-drilling screws involved in this embodiment includes a cooling tank 1 with the slot opening facing upwards. A storage basket 2 is provided in the cooling tank 1. The opening of the storage basket 2 has a retaining ring 3 that extends outwards and forms a closed ring. The retaining ring 3 is located above the cooling tank 1. A front auxiliary frame 4 is provided on the front side of the cooling tank 1, with its left and right ends extending outwards from the outer walls of the cooling tank. A rear auxiliary frame 5 is provided on the rear side of the cooling tank 1, with its left and right ends extending outwards from the outer walls of the cooling tank. Two camshafts 6 arranged symmetrically on the left and right are rotatably connected between the rear auxiliary frame 5 and the front auxiliary frame 4. The camshafts 6 are located on the outside of the cooling tank 1. Each camshaft 6 is provided with a front cam 7 and a rear cam 8 whose wheel surfaces abut against the bottom of the retaining ring. A power assembly 9 for controlling rotation is driven connected to the camshaft 6. The power assembly 9 includes a geared motor. A mounting bracket 12 is provided on the cooling tank 1, and the power assembly 9 is mounted on the mounting bracket 12.

[0016] Furthermore, each of the camshafts 6 is provided with a synchronous pulley 10, and a synchronous belt 11 is connected between the two synchronous pulleys 10 for transmission. The power assembly 9 is located on one of the camshafts 6.

[0017] Furthermore, the inner wall of the cooling tank 1 is provided with a sliding groove 13 that extends vertically, and a slider 14 is slidably connected in the sliding groove 13. The slider 14 is located on the outer wall of the storage basket 2.

[0018] In this device, the mesh basket inside the cooling tank is guided by a slider that engages with a groove in the tank wall. Its retaining ring rests on the top of the cooling tank and abuts against the cam wheel surface. Two camshafts are supported by front and rear auxiliary frames of the cooling tank. The two shafts are synchronously driven by a synchronous pulley and belt. One of the camshafts is driven by a geared motor mounted on the cooling tank support. During operation, the geared motor drives the camshaft to rotate. The cam's protruding portion intermittently lifts the retaining ring, causing the mesh basket to rise. After the protrusion passes, the mesh basket falls back down due to gravity, creating a cycle that achieves efficient cooling of the self-drilling screw.

[0019] Example 2 See Figure 1 and Figure 2As shown, the quenching and cooling device for producing self-drilling screws involved in this embodiment is further configured based on embodiment 1, wherein the cooling tank 1 is provided with a disturbance shaft 15 located below the storage basket, the disturbance shaft 15 is provided with disturbance blades 16, the disturbance shaft 15 is rotatably connected to the cooling tank 1, the disturbance shaft 15 is provided with a gear 17, the gear 17 is meshed with a rack 18 extending vertically, and the rack 18 is connected to the storage basket 2.

[0020] In this implementation, the up-and-down movement of the mesh basket drives the rack to move synchronously. The rack meshes with the gear on the disturbance shaft, converting linear motion into rotational motion, which in turn drives the disturbance shaft and blades to rotate. The blades stir the medium below the mesh basket, promoting convection within the tank and preventing the bottom medium from overheating and becoming ineffective. Simultaneously, the upward flow of water impacts the workpiece, enhancing surface medium renewal and eliminating deep cooling dead zones. This structure requires no additional power; the disturbance is achieved through the linkage of the mesh basket movement, improving efficiency while simplifying the structure and reducing energy consumption.

[0021] This utility model relates to a quenching and cooling device for producing self-drilling screws. A power assembly drives a camshaft to rotate, and the cam intermittently pushes a mesh basket, causing the self-drilling screw to move up and down within the cooling tank. This breaks the static state of the cooling medium around the workpiece, promoting full contact and renewal between the medium and the workpiece, eliminating cooling dead zones, avoiding hardness differences, and improving the stability and yield of the product's mechanical properties. Furthermore, the up-and-down movement of the mesh basket enhances convective heat transfer, accelerating workpiece cooling, shortening cooling time, and improving efficiency. Synchronous pulleys and belts ensure smooth lifting and lowering of the mesh basket, preventing workpiece damage. The modular installation of the power assembly facilitates maintenance, ensures continuous production, reduces downtime losses, and offers comprehensive functionality and strong practicality.

[0022] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0023] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A quenching and cooling device for producing self-drilling screws, comprising a cooling tank with the slot opening facing upwards, characterized in that: The cooling tank is equipped with a storage basket. The opening of the storage basket has an outwardly extending and closed-ring retainer. The retainer is located above the cooling tank. The front side of the cooling tank is equipped with a front auxiliary frame that extends outward from the left and right sides of the outer wall of the cooling tank. The rear side of the cooling tank is equipped with a rear auxiliary frame that extends outward from the left and right sides of the outer wall of the cooling tank. The rear auxiliary frame and the front auxiliary frame are rotatably connected by two camshafts arranged symmetrically from left to right. The camshafts are located on the outside of the cooling tank. Each camshaft is equipped with a front cam and a rear cam whose wheel surfaces abut against the bottom of the retainer. The camshafts are connected to a power assembly that controls the rotation.

2. The quenching and cooling device for producing self-drilling screws according to claim 1, characterized in that: Each of the camshafts is provided with a synchronous pulley, and a synchronous belt is connected between the two synchronous pulleys. The power assembly is located on one of the camshafts.

3. The quenching and cooling device for producing self-drilling screws according to claim 2, characterized in that: The powertrain includes a geared motor.

4. The quenching and cooling device for producing self-drilling screws according to claim 3, characterized in that: The cooling tank is equipped with a mounting bracket, and the powertrain is mounted on the mounting bracket.

5. The quenching and cooling device for producing self-drilling screws according to any one of claims 1-4, characterized in that: The inner wall of the cooling tank is provided with a sliding groove that extends vertically, and a slider is slidably connected in the sliding groove. The slider is located on the outer wall of the storage basket.

6. The quenching and cooling device for producing self-drilling screws according to claim 1, characterized in that: The cooling tank is equipped with a disturbance shaft located below the storage basket. The disturbance shaft is equipped with disturbance blades and is rotatably connected to the cooling tank. The disturbance shaft is equipped with a gear, and a rack that extends vertically meshes with the gear. The rack is connected to the storage basket.

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